Vibration diaphragm for loudspeaker



FIG. 1 is a perspective view of a vibration diaphragm for loudspeaker, showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a sectional view taken along line A-A of FIG. 6; and,

FIG. 9 is a partial enlarged view of area B of FIG. 8. 

CLAIM The ornamental design for vibration diaphragm for loudspeaker, as shown and described. 